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Press Release

Jack Shakes Up Dessert Menu; Jack in the Box(R) Restaurants Adds Whipped Topping and a Cherry to Its Signature Shakes and Introduces Chocolate Chip Cookie Cheesecake

SAN DIEGO--(BUSINESS WIRE)--Aug. 3, 2006--How do you improve upon
perfection? It's not easy, but Jack in the Box(R) restaurants has
figured out a way to make its real ice cream shakes look and taste
even better - with a swirl of creamy whipped topping and a cherry!

Jack's new shake style, which also features a clear plastic cup
with a dome-shaped lid to contain a heaping serving of whipped
topping, is available with all of Jack's famous shake flavors, from
Orange & Cream to Vanilla Malted Crunch.

"We're known for our high-quality shakes and innovative flavors,"
said Teka O'Rourke, director of menu marketing and promotions. "Adding
whipped topping and a cherry to our shakes is a great finishing touch
that makes them even more special. And come on, everything tastes
better with a cherry on top!"

Jack's new shake style is available for the suggested prices,
excluding tax, of $2.49 for a regular and $2.99 for a large at all
participating Jack in the Box restaurants. The new Chocolate Chip
Cookie Cheesecake is available for the suggested price, excluding tax,
of $1.69 at all participating Jack in the Box restaurants.

Jack in the Box Inc. (NYSE:JBX), based in San Diego, is a
restaurant company that operates and franchises Jack in the Box(R)
restaurants, one of the nation's largest hamburger chains, with more
than 2,000 restaurants in 17 states. The company also operates a
proprietary chain of convenience stores called Quick Stuff(R), with
nearly 50 locations, each built adjacent to a full-size Jack in the
Box restaurant and including a major-brand fuel station. Additionally,
through a wholly owned subsidiary, the company operates and franchises
Qdoba Mexican Grill(R), an emerging leader in fast-casual dining, with
more than 280 restaurants in 40 states. For more information, visit
www.jackinthebox.com.